Answer:
1. draw the parallelogram with side 20cm and 25cm respectively and also the diagonal as well.
2.Clearly it forms a triangle in the parallelogram with three known lengths of side.
3.Using the cosine rule : c^2=b^2+c^2 -2bc cos c to find the obtuse angle.
Step-by-step explanation:
Answer:
What is the question?
Step-by-step explanation:
Answer:
I believe it's 2.1H, 2.51H
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The answer is going to be 74a+11b
